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874 hedge funds and large institutions have $20.2B invested in Biogen in 2024 Q4 according to their latest regulatory filings, with 131 funds opening new positions, 300 increasing their positions, 322 reducing their positions, and 159 closing their positions.

New
Increased
Maintained
Reduced
Closed

1.72% more ownership

Funds ownership: 89.11%90.83% (+1.7%)

7% less repeat investments, than reductions

Existing positions increased: 300 | Existing positions reduced: 322

5% less funds holding

Funds holding: 916874 (-42)

13% less call options, than puts

Call options by funds: $310M | Put options by funds: $356M

18% less first-time investments, than exits

New positions opened: 131 | Existing positions closed: 159

19% less capital invested

Capital invested by funds: $25.1B → $20.2B (-$4.84B)

38% less funds holding in top 10

Funds holding in top 10: 85 (-3)

Holders
874
Holders Change
-42
Holders Change %
-4.59%
% of All Funds
11.51%
Holding in Top 10
5
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-37.5%
% of All Funds
0.07%
New
131
Increased
300
Reduced
322
Closed
159
Calls
$310M
Puts
$356M
Net Calls
-$45.6M
Net Calls Change
+$21.7M
Name Holding Trade Value Shares
Change
Change in
Stake
AI
476
Atom Investors
Texas
$420K +$463K +2,745 New
MWM
477
Massachusetts Wealth Management
Massachusetts
$419K -$22.8K -135 -5%
KFC
478
Klingenstein Fields & Co
New York
$418K -$38K -225 -8%
ASN
479
Advisory Services Network
Georgia
$416K -$81.6K -484 -15%
SWP
480
Stratos Wealth Partners
Ohio
$412K -$84.3K -500 -16%
GIM
481
Generali Investments Management
Slovenia
$410K +$452K +2,678 New
FIM
482
Fernwood Investment Management
Massachusetts
$407K -$16.9K -100 -4%
IQI
483
Integrated Quantitative Investments
Washington
$407K +$449K +2,660 New
BG
484
Bellevue Group
Switzerland
$406K +$3.04K +18 +0.7%
EGA
485
Eagle Global Advisors
Texas
$401K
QCM
486
QRG Capital Management
Illinois
$398K +$11.3K +67 +3%
FT
487
Fiduciary Trust
Massachusetts
$398K -$107K -634 -20%
WBC
488
Westpac Banking Corp
Australia
$395K +$73.5K +436 +20%
ACM
489
Aljian Capital Management
Nevada
$391K -$22.6K -134 -5%
VI
490
Vestcor Inc
New Brunswick, Canada
$388K -$675 -4 -0.2%
PP
491
Prudential plc
United Kingdom
$384K
SOW
492
State of Wyoming
Wyoming
$383K +$423K +2,505 New
TE
493
Tema ETFs
New York
$382K +$422K +2,501 New
NSEDCP
494
NJ State Employees Deferred Compensation Plan
New Jersey
$382K
RIG
495
Ramiah Investment Group
Wisconsin
$381K +$40.5K +240 +11%
QT
496
Quantbot Technologies
New York
$378K +$286K +1,694 +218%
IAA
497
Independent Advisor Alliance
North Carolina
$378K -$982K -5,820 -70%
BP
498
Ballentine Partners
Massachusetts
$373K +$154K +911 +60%
TA
499
TFB Advisors
Kansas
$372K -$2.19K -13 -0.5%
AFG
500
Allegheny Financial Group
Pennsylvania
$371K -$169 -1 -0%